Fatal Error (was Error in saveLog(currentLogFileName)

________________________________

From: David Winsemius [mailto:dwinsemius at comcast.net]
Sent: Thu 4/9/2009 2:40 PM
To: Prew, Paul
Cc: r-help at r-project.org
Subject: Re: [R] Error in saveLog(currentLogFileName




On Apr 9, 2009, at 2:17 PM, Prew, Paul wrote:

David,  thank you for your helpful reply.

a) The sessionInfo goof is actually kind of enlightening.  I'm 
assuming that the purpose of adding the "()" symbols is to tell R 
that sessionInfo is a function to be invoked, and leaving "()" 
empty  says to use default arguments?

Yes. Exactly.


b)  In the R GUI, I end my session by using the menu File > Exit.  A 
dialog appears, asking, "Save workspace image?", and I choose Yes.

In fact, I just did it and got a message, never seen this one before

"Console not found.  Error in structure(.External"dotTclObjv:,objv,  
PACKAGE - "tcltk"), class = "tclObj"):[tcl]invalid command name ".
6.1".

I am not an expert in the Windows GUI, but as a former user of it, I 
would wonder if my installation of tcltk had gotten corrupted and 
would try to reinstall. Caveat: That advice could be worth what you 
paid for it.

Closed that message, another similar message was behind it, but now 
the command name was "17.1"

c) yes, agreed --- John Fox has been helpful to me a couple of 
times.  I like the R Commander (it automatically adds those pesky 
details like () that elude me), but I can't go the CRAN to get 
packages from it, so I end up back at the GUI to install a package.  
John has told me that moving back and forth between the GUI and 
Commander is not how Commander was intended to be used.  Perhaps 
this practice has led to some of the present confusions.

Let's say I save a script or history or similar file that I would 
like to recall at a later time,
If I save the file using RCommander, should I only open the file 
using R Commander?  Ditto for R GUI?  Regardless of which platform 
I'm saving the files with, they seem to have some of the same 
extensions, ".R", ".r", ".Rdata", etc.

I doubt that would be necessary, assuming the scripts do not have 
function calls that depend on R Commander being around. Files with .r 
extensions are just text files by another name.

I could not find a saveLog function with R-search restricted to 
functions but did find it as an argument to RCmdr. IIRC, RCmdr uses 
Tck/Tl extensively.

--
David


Thanks,
Paul

Paul Prew  |  Statistician
651-795-5942   |   fax 651-204-7504
Ecolab Research Center  | Mail Stop ESC-F4412-A
655 Lone Oak Drive  |  Eagan, MN 55121-1560

-----Original Message-----
From: David Winsemius [mailto:dwinsemius at comcast.net]
Sent: Thursday, April 09, 2009 12:17 PM
To: Prew, Paul
Cc: r-help at r-project.org
Subject: Re: [R] Error in saveLog(currentLogFileName

This is just two suggestions and a guess.

a) When you desire the information from sessionInfo ,you need to 
type :
sessionInfo()   # not sessionInfo

... results come from function calls and all you got was the
sessionInfo code produced by the implicit print function to which you
gave the argument sessionInfo.

b) Tell us exactly the methods you used to save "my script", "my
workspace", "etc"?

c) As a guess, you had the Zelig package loaded under R-Commander
yesterday but not today. The right person to ask this question of
might be one of those package maintainers. (John Fox is very good
about supporting R-Commander.)




David Winsemius, MD
Heritage Laboratories
West Hartford, CT




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